@Krystianen same issue here, but you may want to try to fix the encryption of the SSID to wpa2 psk instead of wpa2/wpa3 to see if it can help to fox this issue.

  @Giang97 

Thank you for your replay

At Wireless Security i have only like this cant change to other. When change to WPA-Enterprize only WPA3

  @Krystianen You can disable the 6ghz. Neither of the APs you have support it anyway. I would also enable Band Steering to prefer 5ghz.

The statement you made that you turn off the EAP610 and clients cannot connect to the EAP225 sounds like a configuration issue.  I think the first thing you shoud do is confirm the EAP225 is in fact part of the Wi-Fi network you have configured and is broadcasting an SSID. The following assumes the EAP610 and EAP225 are on the same SSID.

1.Turn off the EAP610 as you mentioned.

2.Forget that Wi-Fi network on the phone, laptop or whatever device you are using to test.

3. Let device search for Wi-Fi. 

If the EAP225 is configured correctly, the Wi-FI SSID should appear again. If it doesn't then the EAP225 is either faulty, is not included in the same Wi-Fi network, or is not broadcasting the SSID. 

  @PasLu 

Yes,

1. Turn of WIFI 6

2. Change seculity to WPA2 insted WPA3

3. Reconnect devices to WIIF (forget wifi)